Molding-machine.



P. A. WHITMORE. MOLDING MACHINE. APPLICATION FILED JAN. 7, 1907.

9 1 4,770. Patented Mar. 9, 1909.

2 SHEETS-SHEET 1.

Milli., NW

F. A. WHTMORB.

HOLDING MACHINE.

APPLICATION FILED JAN. 7, 1907. glp@ Paented Mar. 9, 1909.

2 SHEETS-SHEET 2.

Unrrnsiennes sereni oiriricii.y

FRED A. WHITMORE, OF PHILADELPHIA, PENNSYLVANIA, ASIGNOR TO CROMPTON &

KNOWLES LOOM WORKS, A CORPORATION OF MASSACHUSETTS.

i/.foLnrNe-Meoinnn.

Specification of Letters Patent,

Patented March 9, 1909.

Applicationrled'January 7, 1907. Serial No. 351,105.

To all ywhom 'it may concern:

Be it known that I, Feen A. V/'nITMoRE, u.,

l citizen of the United States, residing et Philadelphie, in thecountyoi Philadelphie, and State of Pennsylvanie, have invented certain ,newund useful Improvements in Moldingdtlechines, of which the following isc,

' specification.

llll) My invention relates to molding machines, and particularly to thatclass of molding mechines known as rock over molding mechines.

The object of my invention is to improve upon the class of moldingmachines referred to esordilerily mede, and to provide e roc'lcovermolding machine of improved construction, and in which there is novertical movement ofthe mold carrier, end means ere provided forautomatically locking in posi` tion the mold carrier after it has beenrocked over, and ineens ere' rovided for moving up end edjiusting theower table under the mold, after it has been rocked over, and forclamping* 'the seine in its adjusted position, and means are pro-videdfor rapping the pettern mold to loosen the send trom the et' the uprightstands or columns ofthe machine they ere turned over.

is partially broken sway to illustrate erts 'otherwise concealed, endone side o the frame is brolren out' to illustrate parts otherT wiseconcealed. The broken lines show the position of the mold cerrier, undmold before Fig. 2 is e front view of the parts shown in Fig. l, lookingin the direction of arrow b, same figure, showing one of the uprightstands or columns partially broken awe' and e wheel shaft broken ewey,end one wheel left olf, and, Fig. 3 is :i plan view of the mold carrierdetached, lookingT in the direction of errow c, Fig. 2.

The treme-work ofthe machine is mede of metal, and preferably comprisestwo hollow upright 'stende or columns l, each. having side extensions'orenne 2, extending out in opposite directions, end forming the supportsfor different perts of the machines. Each pnfirof arms 2 has supportedet their outer ends e trensverse shaft or rod 3, having in this instanceloosely mounted thereon et each end e wheel 4.

The two upright stands or columns 1 are connected et their lower ends bye transverse girth 5, see Fig. 2. A transverse girth or cross bei' 6extends over one pair of wheels 1, and vis bolted or otherwise attachedetv each end to one pair of'side arms 2. Extending up from' the crossbei' 6 ere two rods or supports 7, adjustable vertically, on the upperends of which are adapted to rest the mold carrier 8, shown by brokenlines in Fig. 1.

The mold carrier 8 is preferably made of the shape shown in thedrawings, end swin s on the shaft 9, which is fastened securey into thetop of the stand or column 1,.to form the pivotal or hinge support forthe moldcerricr 8. -The mold carrier 8 hes in this instance two roundblocks or extensions 8 thereon, which are adapted to rest on the upperends of the supports or pins 7, see Fig.

1. The mold carrier 8 has preferably e side extension or flange 8,thereon, to which is adapted to be clamped the bottom or putternholderportion 10 of the mold .10. lhe mold 10, and its pattern holder10', may be of any 'ordinary construction, and ere held tovether, and inproper relative position by bolts 11 passing through eers o'r lugs 11 onthe mold. The mold 1Q is adapted to -be' moved from the position shownby broken lines in Fi 1, through the ivote'l connection of the mo dcarrier 8, to t e position shown by full lines in Fig. 1-. p

A counterbalance spring 12 is attached at one end, in this instance to eplete 13 which extends between and is pivotelly connected to two ears 84on the mold carrier S, see Fig. 1. The lower end of the counterbelences ring 12 is in this instance attached to` e p ete 14, which extendsbetween the fork shaped end llon the lever or erm 15, which 'ispivot'elly mounted between eers or lugs "o" on the cross girth 5. Thelever 15 hns teeth or n ratchet surface 15 thereon, which are engagedVby e pawl 16 which is pivotnlly mounted on ears or projections 5 on thecross girth 5. Bymens of the teeth 15 on the lever 15, and the pnwl 1h,the position of seid lever 15 muy he adjusted, und consc-` quently thetension of the counterbalance s ring 12 may be adjusted, to increase oriminish the tension, as desired.

The pivoted end of the mold carrier 3 has two arms or extensions 8a,thereon, each or' which has a side projection Si" thereon. In the twoarms 8a 1s loosely mounted. a rock shaft 17 which has fast on each endthereof a handle' 18. Near each end of the rock shaft 17, in thisinstance between the handle 1S and 'the arm 8, is fast the hub 19 of alock latch'or catch 19. Each lock latch or catch 19 is adapted to extendover and automatically en age a stationary extension or lug 1" on te'upright'stands or columns 1, and a side extension or lug 8 on each arm8a is adapted to engage the opposite edge of the extension or lug.,r 1/,sce Fig. 1, when the mold carrier 8 has been rocked over, from theposition shown by broken lines if?? Fig. 1 to the osition shown by fulllines in Fic. 1. A he ically coiled expansion spring 20 istheld in thisinstance between a ug 8a on the arms l 8, and the upper side of the locklatchesor catches 19, and acts to hold the catch 19 in engagement withthe projections 1. To disengage the lock latches or catches 19 from theextensions 1 a ainst the action of the springs 20, the sha t ,17 isrocked, through the handles 18, to raise the latches 19.

The lower table, which is ada ted to have a vertical motion and to be ajusted when it is moved u under the mold 10, after said mold is rockeover, in this instance consists of the table 21 having a ball 2 2 on itslower part, which extends within a clamp socket 23 on the table supportor frame 24, which has the vertically extending portions or guides 24located within the u right stands or columns 1, see Fig. 2, an( adaptedlto move up or down therein. The table 21 and its support-24, are adaptedto be.raised and lowered., in this instance, through the movement of ahand-operated lever 25, which in this instance is preferably of theshape shown in Fi 2, and 1s in this instance pivotally mounte on a stud26 on a stand 27 secured to or forming a part of one of the sideextensions or arms 2, see Fig. 2. The lever 25 has at one end the hand e25', and

` at its other 'end is pivotally attached by a stud28 to the lug orprojection 24 on .the

joint connection,

.lowen part of the frame 24 of the table 21.V

A Acounterbalance spring 29, attached at one end to the lever 25, and'adjustably connected at its other end to a stationary lug.

or projection 30 on one side extensionor larm 2, sce Fig. 2, acts as acounterbalance spring to overcome the weight vof the table 21, and allowthe table to be moved up more easily. By reason yof the.ball and socketits sup ort 24, the t'able 21, by v'turning the andle 31 of the clampsocket 23, to loosen the clamp,

' its between ,the table 21- and will adjust tself to its rroperposition on the underside of thc rniild.` tighten the clamp socket 23,and hold the table in its adjustedposition.

In connection with the mold carrier 8, I preferably use a rappingmechanism, or means for rapping or movinv the mold carrier 8, and withit the moldtto loosen the pattern in the sand. The o en frame-work ofthe mold carrier 8 at its ree end, has, in this instance four lugs,l orears V8 extending inwardly, see Fig. 3, which extend in the path of andare adapted to be engaged by two weights or blocks 32, each ivotallymounted on o posite ends of a ever 33, which is centra ly supported andfast on an uprightshait 34, mounted in suitable bearings on the outerfree end of a rigid arm or brace 35, which is secured at its oppositeendon the pivotally attached end of the mold carrier 8. The shaft 34 hasa inion 36 fast thereon, which meshes with an( is rotated by a pinion 37fast on a. shait 3S mounted in he clamp handle 31 is then turned to' ,f

suitable bearings on the end of the arm 35. f

A handle 39 is also fast on the shaft 38, and is used to rotate saidshaft, and through the revolution of the pinion 37 and the pinion 36, torotate the lever 33, and4 cause the weights or blocks 32 thereon toengage the lugs or ears 8 on the mold carrier 8, and rap said carrier,and through the rapping of said carrier shake the mold 10, toloosen andallow the ready removal of the pattern.

From the above description in connection 'with the drawin s, theoperation of my molding machine wil be readily understood by thoseskilled in the art. The mold carrier is in the position shown by brokenlines in Fig. 1, and the mold having` the pattern therein is clamped orsecured to the carrier 8, and the sand is laced in the mold and rammedin', .and the hottom boar,` .is put on, and the parte clamlped togetherinthe usual way the o erator t en raises the mold carrier 8 with t emold fast therein, and rocks it over on pivotal support, from theposition shown by roken lines, to the position shown by full lines inFig. 1. The counterbalances ring 12 acts to lessen the Weight of the molcarrier and mold, after it has passed its pivotal center.

As the mold carrier is rocked over, i

from the position shown b lbroken lines, to

the position shown by, fullA es in Fig. 1, the lock latches 19 passoveru the extensions 1" on the columns 1, and act to automatically lockand hold` the mold carrier'S and the 'mold 10 in its rocked overposition, the extensions Sa on the arms 8a engaging the extensions 1 onthe columns 1', see-Fig). 1.4

een

After the mold carrier' and moldhave rocked over to the position shownby full lines in Fig. 1, the attendant, after turning the clamp handle31fof the clamp socket` 23 for thc ball 22 on the table i.' to releasethe# ball 22, movesupthe support 24 of the table' the mold carrier 8 an21, and also the table 2l, and said table 21', coming in contaet withthe lower part of the mold 10, adjusts itself to the roper position.

rllhe olamp handle 31y is 't tightenthe elem the attendant, t handle 29of en turned to rough the rotation of the the raping mechanism, 4rapsthe mold 10', loosening the pattern in the sand. He then disconnects r'1. Ina molding vInaehiDe having Ythe lowering of the table is repeated.

ItV will be understood that the details of construction of myimprovements may be varied desired. p

Hagring thus described my invention, what I' claim' as new and desiretosecure by Lettersrtnt is;-- v

4able table, the eombination with a mold oarable table. seeketon vtheballl, and

osition shown rier having a rook over movement, of means forautomatically looking sald carrier in position after it has been rockedover the mov- 2. In a molding machine, with a table adapted to be raisedand lowered wider the mold carrier by a manually operated lever, andsaid lever, and said table having a ball and socket clamp attachment toallow theadjustment table under the mold, and. a clamp handle forclamping the socket on' the ball to hold the' table in its adjustedposition, of a mold earrier having a rock over movement, and

means for automatically locking the carrier 40 in position after it hasbeen rocked over the movable table, and 'manually operated meansforunloekin the mold Carrier, and a eounterbalance s rlng for the moldcarrier,

and means for a spring. 4 I

FRED A. WHITMORE.

Witnesses:

Ropa?. G. FOSTER, l H. F. PnELPs.

tlie combination 30 or leveling of the 35 Justing the tension of said 45

